package com.wx.chapter14.map_;

import java.util.HashMap;

/**
 * @Author : 佩萁
 * Description :
 * @Create : 2023/8/4 - 18:38
 */
public class HashMapSource1 {
    public static void main(String[] args) {
        HashMap map = new HashMap();
        map.put("java", 10);//ok
        map.put("php", 10);//ok
        map.put("java", 20);//替换 value
    }
}
